Propellant ignition assembly and process
US7228906B2 · kind B2 · utility
26Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2003 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Apr 21, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/263
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Method and apparatus for stimulating a subterranean formation that is penetrated by a well bore in fluid communication with the formation. At least one length of propellant is assembled with at least one shaped explosive charge that is aimed axially along the well bore toward the propellant. Detonation of the explosive charge ignites the propellant and any successive explosive charge positioned in the well bore. Detonation of the successive explosive charge ignites the next successive length of propellant and next successive explosive charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.